summaryrefslogtreecommitdiff
blob: 31dd6983592e123ab44149eed1d9f13101e0aee3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
From f041627ec383536d124002b81301c80b7a1757f7 Mon Sep 17 00:00:00 2001
From: jshin <jshin@chromium.org>
Date: Thu, 23 Mar 2017 02:57:16 -0700
Subject: [PATCH] Prepare Chromium and Blink for ICU 59

ICU 59 uses char16_t as UChar instead of {wchar_t, uint16_t}.
As a result, char16_t is not compatible with char16 any more.
When constructing string16 from UnicodeString/UChar buffer, we need to
reinterpret_cast with a barrier (to avoid an anti-aliasing optimzation
by some compilers).

Add UnicodeStringToString16() to base/i18n that utilizes ICU 59-to-be's
helper for the casting regardless of anti-aliasing optimization.

And, refactor UnicodeString->string16->UTF8 string to UnicodeString->UTF8
in a few places.

For ICU C API "clients", UChar will be configured to be {wchar_t, uint16_t}
so that there's little to be changed.

This was tested with an ICU branch with char16_t as UChar.

http://source.icu-project.org/repos/icu/branches/markus/ucharptr2/

BUG=693640
TEST=trybots are all green.

Review-Url: https://codereview.chromium.org/2740673002
Cr-Commit-Position: refs/heads/master@{#459034}
---
 ash/common/system/date/date_view.cc                | 30 ++------------------
 base/BUILD.gn                                      |  1 +
 base/i18n/message_formatter.cc                     |  5 ++--
 base/i18n/number_formatting.cc                     |  5 ++--
 base/i18n/string_compare.cc                        |  5 ++--
 base/i18n/time_formatting.cc                       |  9 +++---
 base/i18n/time_formatting_unittest.cc              |  3 +-
 base/i18n/timezone.cc                              |  4 +--
 base/i18n/unicodestring.h                          | 32 ++++++++++++++++++++++
 chrome/browser/chromeos/system/timezone_util.cc    |  6 ++--
 .../webui/md_downloads/downloads_list_tracker.cc   |  4 +--
 chromeos/settings/timezone_settings.cc             |  4 +--
 .../core/browser/autofill_profile_comparator.cc    |  3 +-
 components/autofill/core/browser/credit_card.cc    |  7 +++--
 .../browser/android/date_time_chooser_android.cc   |  4 +--
 content/renderer/android/email_detector.cc         |  4 +--
 ios/chrome/browser/notification_promo_unittest.cc  | 10 ++-----
 net/ftp/ftp_util.cc                                |  5 ++--
 .../Source/core/html/forms/EmailInputType.cpp      | 13 +++++++--
 19 files changed, 88 insertions(+), 66 deletions(-)
 create mode 100644 base/i18n/unicodestring.h

diff --git a/ash/common/system/date/date_view.cc b/ash/common/system/date/date_view.cc
index 41aa1919a980..8d9c416fd392 100644
--- a/ash/common/system/date/date_view.cc
+++ b/ash/common/system/date/date_view.cc
@@ -57,43 +57,19 @@ bool UseMd() {
   return MaterialDesignController::IsSystemTrayMenuMaterial();
 }
 
-base::string16 FormatDateWithPattern(const base::Time& time,
-                                     const char* pattern) {
-  UErrorCode status = U_ZERO_ERROR;
-  std::unique_ptr<icu::DateTimePatternGenerator> generator(
-      icu::DateTimePatternGenerator::createInstance(status));
-  DCHECK(U_SUCCESS(status));
-  icu::UnicodeString generated_pattern =
-      generator->getBestPattern(icu::UnicodeString(pattern), status);
-  DCHECK(U_SUCCESS(status));
-  icu::SimpleDateFormat simple_formatter(generated_pattern, status);
-  DCHECK(U_SUCCESS(status));
-  icu::UnicodeString date_string;
-  simple_formatter.format(static_cast<UDate>(time.ToDoubleT() * 1000),
-                          date_string, status);
-  DCHECK(U_SUCCESS(status));
-  return base::string16(date_string.getBuffer(),
-                        static_cast<size_t>(date_string.length()));
-}
-
 base::string16 FormatDate(const base::Time& time) {
   if (UseMd()) {
     // Use 'short' month format (e.g., "Oct") followed by non-padded day of
     // month (e.g., "2", "10").
-    return FormatDateWithPattern(time, "LLLd");
+    return base::TimeFormatWithPattern(time, "LLLd");
   } else {
-    icu::UnicodeString date_string;
-    std::unique_ptr<icu::DateFormat> formatter(
-        icu::DateFormat::createDateInstance(icu::DateFormat::kMedium));
-    formatter->format(static_cast<UDate>(time.ToDoubleT() * 1000), date_string);
-    return base::string16(date_string.getBuffer(),
-                          static_cast<size_t>(date_string.length()));
+    return base::TimeFormatShortDate(time);
   }
 }
 
 base::string16 FormatDayOfWeek(const base::Time& time) {
   // Use 'short' day of week format (e.g., "Wed").
-  return FormatDateWithPattern(time, "EEE");
+  return base::TimeFormatWithPattern(time, "EEE");
 }
 
 }  // namespace
diff --git a/base/BUILD.gn b/base/BUILD.gn
index 3754be5f383f..29a60c1a265f 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -1564,6 +1564,7 @@ component("i18n") {
     "i18n/time_formatting.h",
     "i18n/timezone.cc",
     "i18n/timezone.h",
+    "i18n/unicodestring.h",
     "i18n/utf8_validator_tables.cc",
     "i18n/utf8_validator_tables.h",
   ]
diff --git a/base/i18n/message_formatter.cc b/base/i18n/message_formatter.cc
index 702e51b94aaa..6962a2829755 100644
--- a/base/i18n/message_formatter.cc
+++ b/base/i18n/message_formatter.cc
@@ -4,6 +4,7 @@
 
 #include "base/i18n/message_formatter.h"
 
+#include "base/i18n/unicodestring.h"
 #include "base/logging.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/time/time.h"
@@ -91,7 +92,7 @@ string16 MessageFormatter::FormatWithNumberedArgs(
                << u_errorName(error);
     return string16();
   }
-  return string16(formatted.getBuffer(), formatted.length());
+  return i18n::UnicodeStringToString16(formatted);
 }
 
 string16 MessageFormatter::FormatWithNamedArgs(
@@ -134,7 +135,7 @@ string16 MessageFormatter::FormatWithNamedArgs(
                << u_errorName(error);
     return string16();
   }
-  return string16(formatted.getBuffer(), formatted.length());
+  return i18n::UnicodeStringToString16(formatted);
 }
 
 }  // namespace i18n
diff --git a/base/i18n/number_formatting.cc b/base/i18n/number_formatting.cc
index b51083348460..5a0503f77de1 100644
--- a/base/i18n/number_formatting.cc
+++ b/base/i18n/number_formatting.cc
@@ -10,6 +10,7 @@
 
 #include "base/format_macros.h"
 #include "base/i18n/message_formatter.h"
+#include "base/i18n/unicodestring.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
@@ -60,7 +61,7 @@ string16 FormatNumber(int64_t number) {
   icu::UnicodeString ustr;
   number_format->format(number, ustr);
 
-  return string16(ustr.getBuffer(), static_cast<size_t>(ustr.length()));
+  return i18n::UnicodeStringToString16(ustr);
 }
 
 string16 FormatDouble(double number, int fractional_digits) {
@@ -76,7 +77,7 @@ string16 FormatDouble(double number, int fractional_digits) {
   icu::UnicodeString ustr;
   number_format->format(number, ustr);
 
-  return string16(ustr.getBuffer(), static_cast<size_t>(ustr.length()));
+  return i18n::UnicodeStringToString16(ustr);
 }
 
 string16 FormatPercent(int number) {
diff --git a/base/i18n/string_compare.cc b/base/i18n/string_compare.cc
index 2851e7d2dce1..649c28119fe3 100644
--- a/base/i18n/string_compare.cc
+++ b/base/i18n/string_compare.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
+#include "third_party/icu/source/common/unicode/unistr.h"
 
 namespace base {
 namespace i18n {
@@ -17,8 +18,8 @@ UCollationResult CompareString16WithCollator(const icu::Collator& collator,
                                              const string16& rhs) {
   UErrorCode error = U_ZERO_ERROR;
   UCollationResult result = collator.compare(
-      static_cast<const UChar*>(lhs.c_str()), static_cast<int>(lhs.length()),
-      static_cast<const UChar*>(rhs.c_str()), static_cast<int>(rhs.length()),
+      icu::UnicodeString(FALSE, lhs.c_str(), static_cast<int>(lhs.length())),
+      icu::UnicodeString(FALSE, rhs.c_str(), static_cast<int>(rhs.length())),
       error);
   DCHECK(U_SUCCESS(error));
   return result;
diff --git a/base/i18n/time_formatting.cc b/base/i18n/time_formatting.cc
index 024b86510b5a..ae1c59eb411a 100644
--- a/base/i18n/time_formatting.cc
+++ b/base/i18n/time_formatting.cc
@@ -8,6 +8,7 @@
 
 #include <memory>
 
+#include "base/i18n/unicodestring.h"
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ -26,8 +27,7 @@ string16 TimeFormat(const icu::DateFormat* formatter,
   icu::UnicodeString date_string;
 
   formatter->format(static_cast<UDate>(time.ToDoubleT() * 1000), date_string);
-  return string16(date_string.getBuffer(),
-                  static_cast<size_t>(date_string.length()));
+  return i18n::UnicodeStringToString16(date_string);
 }
 
 string16 TimeFormatWithoutAmPm(const icu::DateFormat* formatter,
@@ -46,8 +46,7 @@ string16 TimeFormatWithoutAmPm(const icu::DateFormat* formatter,
       begin--;
     time_string.removeBetween(begin, ampm_field.getEndIndex());
   }
-  return string16(time_string.getBuffer(),
-                  static_cast<size_t>(time_string.length()));
+  return i18n::UnicodeStringToString16(time_string);
 }
 
 icu::SimpleDateFormat CreateSimpleDateFormatter(const char* pattern) {
@@ -168,7 +167,7 @@ string16 TimeDurationFormat(const TimeDelta& time,
   icu::UnicodeString formatted;
   icu::FieldPosition ignore(icu::FieldPosition::DONT_CARE);
   measure_format.formatMeasures(measures, 2, formatted, ignore, status);
-  return base::string16(formatted.getBuffer(), formatted.length());
+  return i18n::UnicodeStringToString16(formatted);
 }
 
 HourClockType GetHourClockType() {
diff --git a/base/i18n/time_formatting_unittest.cc b/base/i18n/time_formatting_unittest.cc
index 51a48513aca6..eca8ea2cdaea 100644
--- a/base/i18n/time_formatting_unittest.cc
+++ b/base/i18n/time_formatting_unittest.cc
@@ -7,6 +7,7 @@
 #include <memory>
 
 #include "base/i18n/rtl.h"
+#include "base/i18n/unicodestring.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/icu_test_util.h"
 #include "base/time/time.h"
@@ -37,7 +38,7 @@ base::string16 GetShortTimeZone(const Time& time) {
   zone_formatter->format(UTZFMT_STYLE_SPECIFIC_SHORT, *zone,
                          static_cast<UDate>(time.ToDoubleT() * 1000),
                          name, nullptr);
-  return base::string16(name.getBuffer(), name.length());
+  return i18n::UnicodeStringToString16(name);
 }
 
 #if defined(OS_ANDROID)
diff --git a/base/i18n/timezone.cc b/base/i18n/timezone.cc
index e881c9d680f8..95e7aee34c4c 100644
--- a/base/i18n/timezone.cc
+++ b/base/i18n/timezone.cc
@@ -610,9 +610,9 @@ std::string CountryCodeForCurrentTimezone() {
   std::unique_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault());
   icu::UnicodeString id;
   zone->getID(id);
-  string16 olson_code(id.getBuffer(), id.length());
+  std::string olson_code;
   return TimezoneMap::GetInstance()->CountryCodeForTimezone(
-      UTF16ToUTF8(olson_code));
+      id.toUTF8String(olson_code));
 }
 
 }  // namespace base
diff --git a/base/i18n/unicodestring.h b/base/i18n/unicodestring.h
new file mode 100644
index 000000000000..b62c5264deb4
--- /dev/null
+++ b/base/i18n/unicodestring.h
@@ -0,0 +1,32 @@
+// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_I18N_UNICODESTRING_H_
+#define BASE_I18N_UNICODESTRING_H_
+
+#include "base/strings/string16.h"
+#include "third_party/icu/source/common/unicode/unistr.h"
+#include "third_party/icu/source/common/unicode/uvernum.h"
+
+#if U_ICU_VERSION_MAJOR_NUM >= 59
+#include "third_party/icu/source/common/unicode/char16ptr.h"
+#endif
+
+namespace base {
+namespace i18n {
+
+inline string16 UnicodeStringToString16(const icu::UnicodeString& unistr) {
+#if U_ICU_VERSION_MAJOR_NUM >= 59
+  return base::string16(icu::toUCharPtr(unistr.getBuffer()),
+                        static_cast<size_t>(unistr.length()));
+#else
+  return base::string16(unistr.getBuffer(),
+                        static_cast<size_t>(unistr.length()));
+#endif
+}
+
+}  // namespace i18n
+}  // namespace base
+
+#endif  // BASE_UNICODESTRING_H_
diff --git a/chrome/browser/chromeos/system/timezone_util.cc b/chrome/browser/chromeos/system/timezone_util.cc
index 6c41a052197a..d01f60e03b9f 100644
--- a/chrome/browser/chromeos/system/timezone_util.cc
+++ b/chrome/browser/chromeos/system/timezone_util.cc
@@ -11,6 +11,7 @@
 #include <utility>
 
 #include "base/i18n/rtl.h"
+#include "base/i18n/unicodestring.h"
 #include "base/lazy_instance.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
@@ -77,7 +78,7 @@ base::string16 GetExemplarCity(const icu::TimeZone& zone) {
   if (!U_FAILURE(status)) {
     city = icu::ures_getUnicodeStringByKey(zone_item.get(), "ec", &status);
     if (U_SUCCESS(status))
-      return base::string16(city.getBuffer(), city.length());
+      return base::i18n::UnicodeStringToString16(city);
   }
 
   // Fallback case in case of failure.
@@ -135,8 +136,7 @@ base::string16 GetTimezoneName(const icu::TimeZone& timezone) {
   }
   base::string16 result(l10n_util::GetStringFUTF16(
       IDS_OPTIONS_SETTINGS_TIMEZONE_DISPLAY_TEMPLATE,
-      base::ASCIIToUTF16(offset_str),
-      base::string16(name.getBuffer(), name.length()),
+      base::ASCIIToUTF16(offset_str), base::i18n::UnicodeStringToString16(name),
       GetExemplarCity(timezone)));
   base::i18n::AdjustStringForLocaleDirection(&result);
   return result;
diff --git a/chrome/browser/ui/webui/md_downloads/downloads_list_tracker.cc b/chrome/browser/ui/webui/md_downloads/downloads_list_tracker.cc
index caf07f69197c..38ed53586d6a 100644
--- a/chrome/browser/ui/webui/md_downloads/downloads_list_tracker.cc
+++ b/chrome/browser/ui/webui/md_downloads/downloads_list_tracker.cc
@@ -9,6 +9,7 @@
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/i18n/rtl.h"
+#include "base/i18n/unicodestring.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
@@ -74,8 +75,7 @@ base::string16 TimeFormatLongDate(const base::Time& time) {
       icu::DateFormat::createDateInstance(icu::DateFormat::kLong));
   icu::UnicodeString date_string;
   formatter->format(static_cast<UDate>(time.ToDoubleT() * 1000), date_string);
-  return base::string16(date_string.getBuffer(),
-                        static_cast<size_t>(date_string.length()));
+  return base::i18n::UnicodeStringToString16(date_string);
 }
 
 }  // namespace
diff --git a/chromeos/settings/timezone_settings.cc b/chromeos/settings/timezone_settings.cc
index 38ea65d653ac..63aa4c02f260 100644
--- a/chromeos/settings/timezone_settings.cc
+++ b/chromeos/settings/timezone_settings.cc
@@ -12,6 +12,7 @@
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
+#include "base/i18n/unicodestring.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
@@ -478,8 +479,7 @@ TimezoneSettings* TimezoneSettings::GetInstance() {
 // static
 base::string16 TimezoneSettings::GetTimezoneID(const icu::TimeZone& timezone) {
   icu::UnicodeString id;
-  timezone.getID(id);
-  return base::string16(id.getBuffer(), id.length());
+  return base::i18n::UnicodeStringToString16(timezone.getID(id));
 }
 
 }  // namespace system
diff --git a/components/autofill/core/browser/autofill_profile_comparator.cc b/components/autofill/core/browser/autofill_profile_comparator.cc
index edfe2450d679..227a5901c683 100644
--- a/components/autofill/core/browser/autofill_profile_comparator.cc
+++ b/components/autofill/core/browser/autofill_profile_comparator.cc
@@ -9,6 +9,7 @@
 
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/char_iterator.h"
+#include "base/i18n/unicodestring.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ -128,7 +129,7 @@ base::string16 AutofillProfileComparator::NormalizeForComparison(
 
   icu::UnicodeString value = icu::UnicodeString(result.data(), result.length());
   transliterator_->transliterate(value);
-  return base::string16(value.getBuffer(), value.length());
+  return base::i18n::UnicodeStringToString16(value);
 }
 
 bool AutofillProfileComparator::AreMergeable(const AutofillProfile& p1,
diff --git a/components/autofill/core/browser/credit_card.cc b/components/autofill/core/browser/credit_card.cc
index 75a34c75a260..76867e0391c2 100644
--- a/components/autofill/core/browser/credit_card.cc
+++ b/components/autofill/core/browser/credit_card.cc
@@ -12,6 +12,8 @@
 #include <string>
 
 #include "base/guid.h"
+#include "base/i18n/time_formatting.h"
+#include "base/i18n/unicodestring.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
@@ -806,7 +808,8 @@ bool CreditCard::ConvertMonth(const base::string16& month,
   int32_t num_months;
   const icu::UnicodeString* months = date_format_symbols.getMonths(num_months);
   for (int32_t i = 0; i < num_months; ++i) {
-    const base::string16 icu_month(months[i].getBuffer(), months[i].length());
+    const base::string16 icu_month(
+        base::i18n::UnicodeStringToString16(months[i]));
     if (compare.StringsEqual(icu_month, month)) {
       *num = i + 1;  // Adjust from 0-indexed to 1-indexed.
       return true;
@@ -819,7 +822,7 @@ bool CreditCard::ConvertMonth(const base::string16& month,
   base::string16 trimmed_month;
   base::TrimString(month, ASCIIToUTF16("."), &trimmed_month);
   for (int32_t i = 0; i < num_months; ++i) {
-    base::string16 icu_month(months[i].getBuffer(), months[i].length());
+    base::string16 icu_month(base::i18n::UnicodeStringToString16(months[i]));
     base::TrimString(icu_month, ASCIIToUTF16("."), &icu_month);
     if (compare.StringsEqual(icu_month, trimmed_month)) {
       *num = i + 1;  // Adjust from 0-indexed to 1-indexed.
diff --git a/content/browser/android/date_time_chooser_android.cc b/content/browser/android/date_time_chooser_android.cc
index ba20ad53bd5c..28b6d03344f0 100644
--- a/content/browser/android/date_time_chooser_android.cc
+++ b/content/browser/android/date_time_chooser_android.cc
@@ -9,6 +9,7 @@
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/i18n/char_iterator.h"
+#include "base/i18n/unicodestring.h"
 #include "content/common/date_time_suggestion.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/render_view_host.h"
@@ -36,8 +37,7 @@ base::string16 SanitizeSuggestionString(const base::string16& string) {
       sanitized.append(c);
     sanitized_iterator.Advance();
   }
-  return base::string16(sanitized.getBuffer(),
-                        static_cast<size_t>(sanitized.length()));
+  return base::i18n::UnicodeStringToString16(sanitized);
 }
 
 }  // namespace
diff --git a/content/renderer/android/email_detector.cc b/content/renderer/android/email_detector.cc
index 564f3417305f..1a0db8b07a85 100644
--- a/content/renderer/android/email_detector.cc
+++ b/content/renderer/android/email_detector.cc
@@ -62,8 +62,8 @@ bool EmailDetector::FindContent(const base::string16::const_iterator& begin,
     DCHECK(U_SUCCESS(status));
     icu::UnicodeString content_ustr(matcher->group(status));
     DCHECK(U_SUCCESS(status));
-    base::UTF16ToUTF8(content_ustr.getBuffer(), content_ustr.length(),
-        content_text);
+    content_text->clear();
+    content_ustr.toUTF8String(*content_text);
     return true;
   }
 
diff --git a/ios/chrome/browser/notification_promo_unittest.cc b/ios/chrome/browser/notification_promo_unittest.cc
index 830d9c5f65a0..d5356e8e6dcb 100644
--- a/ios/chrome/browser/notification_promo_unittest.cc
+++ b/ios/chrome/browser/notification_promo_unittest.cc
@@ -34,18 +34,14 @@ bool YearFromNow(double* date_epoch, std::string* date_string) {
   UErrorCode status = U_ZERO_ERROR;
   icu::SimpleDateFormat simple_formatter(icu::UnicodeString(kDateFormat),
                                          icu::Locale("en_US"), status);
-  if (!U_SUCCESS(status))
-    return false;
-
   icu::UnicodeString date_unicode_string;
   simple_formatter.format(static_cast<UDate>(*date_epoch * 1000),
                           date_unicode_string, status);
-  if (!U_SUCCESS(status))
+  if (U_FAILURE(status))
     return false;
 
-  return base::UTF16ToUTF8(date_unicode_string.getBuffer(),
-                           static_cast<size_t>(date_unicode_string.length()),
-                           date_string);
+  date_unicode_string.toUTF8String(*date_string);
+  return true;
 }
 
 }  // namespace
diff --git a/net/ftp/ftp_util.cc b/net/ftp/ftp_util.cc
index 00b23b7c10b7..e9331ab3818b 100644
--- a/net/ftp/ftp_util.cc
+++ b/net/ftp/ftp_util.cc
@@ -9,6 +9,7 @@
 
 #include "base/i18n/case_conversion.h"
 #include "base/i18n/char_iterator.h"
+#include "base/i18n/unicodestring.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/singleton.h"
@@ -175,8 +176,8 @@ class AbbreviatedMonthsMap {
           format_symbols.getShortMonths(months_count);
 
       for (int32_t month = 0; month < months_count; month++) {
-        base::string16 month_name(months[month].getBuffer(),
-                            static_cast<size_t>(months[month].length()));
+        base::string16 month_name(
+            base::i18n::UnicodeStringToString16(months[month]));
 
         // Ignore the case of the month names. The simplest way to handle that
         // is to make everything lowercase.
diff --git a/third_party/WebKit/Source/core/html/forms/EmailInputType.cpp b/third_party/WebKit/Source/core/html/forms/EmailInputType.cpp
index 07d10a31ffde..4dab06aa19a5 100644
--- a/third_party/WebKit/Source/core/html/forms/EmailInputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/EmailInputType.cpp
@@ -23,6 +23,9 @@
 
 #include "core/html/forms/EmailInputType.h"
 
+#include <unicode/idna.h>
+#include <unicode/unistr.h>
+#include <unicode/uvernum.h>
 #include "bindings/core/v8/ScriptRegexp.h"
 #include "core/InputTypeNames.h"
 #include "core/html/HTMLInputElement.h"
@@ -31,8 +34,10 @@
 #include "platform/text/PlatformLocale.h"
 #include "public/platform/Platform.h"
 #include "wtf/text/StringBuilder.h"
-#include <unicode/idna.h>
-#include <unicode/unistr.h>
+
+#if U_ICU_VERSION_MAJOR_NUM >= 59
+#include <unicode/char16ptr.h>
+#endif
 
 namespace blink {
 
@@ -87,7 +92,11 @@ String EmailInputType::convertEmailAddressToASCII(const ScriptRegexp& regexp,
 
   StringBuilder builder;
   builder.append(address, 0, atPosition + 1);
+#if U_ICU_VERSION_MAJOR_NUM >= 59
+  builder.append(icu::toUCharPtr(domainName.getBuffer()), domainName.length());
+#else
   builder.append(domainName.getBuffer(), domainName.length());
+#endif
   String asciiEmail = builder.toString();
   return isValidEmailAddress(regexp, asciiEmail) ? asciiEmail : address;
 }
diff --git a/third_party/sfntly/src/cpp/src/sample/chromium/subsetter_impl.cc b/third_party/sfntly/src/cpp/src/sample/chromium/subsetter_impl.cc
index c53e607..17452e1 100644
--- a/third_party/sfntly/src/cpp/src/sample/chromium/subsetter_impl.cc
+++ b/third_party/sfntly/src/cpp/src/sample/chromium/subsetter_impl.cc
@@ -23,6 +23,8 @@
 #include <map>
 #include <set>
 
+#include <unicode/unistr.h>
+
 #include "sfntly/table/bitmap/eblc_table.h"
 #include "sfntly/table/bitmap/ebdt_table.h"
 #include "sfntly/table/bitmap/index_sub_table.h"
-- 
2.14.3